Sennheiser Set 820 Instruction Manual page 39

If problems occur...
- Are all jack plugs connected correctly?
- Are the receiver and sound source turned on and is the volume of the
- receiver and sound source sufficient?
- Have you pulled the earbows apart?
- Is the battery inserted properly into the receiver?
- Have you charged the battery for at least 20 minutes?
- Are you too far from the transmitter? (if so, move closer)
- Choose a different channel.
- Adjust the setting with the T button.
UNE
- Should the problem persist, please contact your authorized dealer for
assistance.
Never open the unit!
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